Jessica Pegula, Danielle Collins record easy wins in Chicago

Americans Jessica Pegula and Danielle Collins rolled to easy victories in the opening round of the Chicago Fall Tennis Classic on Monday.

The ninth-seeded Pegula needed just 66 minutes to complete a 6-3, 6-0 victory over Poland's Magdalena Frech and the 10th-seeded Collins required 81 minutes to post a 6-4, 6-2 win over Kirsten Flipkens of Belgium. American Madison Keys retired due to a right shoulder injury against Bela